SB20251226159 - Use-after-free in Linux kernel core lib driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226159
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-54015)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mlx5_devcom_register_device() function in drivers/net/ethernet/mellanox/mlx5/core/lib/devcom.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1e755065368000205e6683fa924b2654e99f573b
- https://git.kernel.org/stable/c/3dfc1004d9afbf689087ae1eafd88f55481984c7
- https://git.kernel.org/stable/c/a3a516caef2c5be2f4d171890a8b3415bfab4e5e
- https://git.kernel.org/stable/c/af87194352cad882d787d06fb7efa714acd95427
- https://git.kernel.org/stable/c/d4d10a6df1529b3f446cdada5c25e065f4712756
- https://git.kernel.org/stable/c/eaa365c10459052cbe3e44caa4ad760cb93bd435
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.31